Lubricating compound



Patented Aug. 28, 1923.

narsueono KUHATA,

OF NAGASAKI, JAPAN.-

LUBRICATING COMPOUND.

K0 Drawing. Application filed August 11, 1917,

To all whom it may concern:

Be it known that I, HATSUGORO KURATA, a subject of the Emperor of Japan, and a resident of Nagasaki City, Japan, have invented a new and useful Lubricating Compound, of which the following is a specification.

An object of my invention is the production of alubricating compound to be applied to marine and other engines for lubrication, preventing wears and damages of such engines, and increasing working efliciency thereof.

Another object of my invention is the production of a lubricating compound of the class described, easy to produce, very cheap in cost of production, and far more economical in use than any other ordinary machine oil or lubricant.

Other objects and advantages to be derived from the use of my present invention will appear from the following detailed description and the claim:

My present lubricating compound consists of a mixture of an ordinary mineral oil, water solution of a vegetable albuminous material such as soy bean albumen or protein, a mineral preservative such as amiddle oil (by-product of coal distillation comprising naphthalene, carbolic acid, creosote, and the like), and an alkaline material such as sodium carbonate or lime. Said mineral or acid preservative is used to facilitate in preserving the vegetable albuminous material and the compound produced, and said alka line material for neutralizing the preservative to prevent the same from corroding metal.

In preparing my lubrication compound I prefer to use the ingredients in about the following proportions z-forty parts of soy bean, two parts of middle oil, fifty parts of mineral oil, four parts of sodium carbonate, and one hundred and fifty parts of water. Good results may be obtained, however,when the ingredients are varied in some measure to meet various requirements, and when a vegetable pasty material such as paste made from sea weed is substituted for said vegetable albuminous material.

To describe the operation of production in a more specific manner to cite an example, soy beans in a suitable proportion to the other ingredients and previously soaked in Serial No. 185,746. Renewed December 12; 1922.

water are finely crushed or ground under millstone, in an iron or porcelain vessel, or in any other suitable way, to which a small quantity of sodium carbonate solution is added and stirred, and the mixture thus formed is pressed and filtered in any suitable known manner. To the filtered liquid, that is, water solution of soy bean albumen or protein, a proportionate amount of mineral oil is gradually added and thoroughly shaken, to which a proportionate amount of middle oil and the remainder of said sodium carbonate, previously taken in a proportionate amount and a small quantity of the same was used in the manner described above, are added and completely mixed. In this way my lubricating compound can be produced very easily and is extremely rich in lubricating properties.

It is a well known fact that, when an engine runs, heat is generatedat those parts of the; machine where severe frictions take place andwvears away-such parts, and that it sometimes causes damages to the engine or tends to decrease its rotating capacity. As a general rule, therefore, various kinds of machine oils are injected or water is poured in to cool those parts and increase its rotating capacity.

In my lubricating compound, mineral. oil is diluted to about five times as much as its original amount or volume, and, as the other ingredients are very cheap in cost, itmay be said that considerable reduction in lubricating cost can be effected by my invention in this respect. In addition to this, my

lubricating compound possesses the com-.

bined advantages of being more durable and considerably more efficient in reducing frictions than other machine oils of a single component (for instance, while one injection of an inferior machine oil is hardly good enough to prevent the parts of the engine to which the same is applied from Wearing for fifteen minutes, that of a superior machine oil for twenty or thirty minutes, one single injection of my lubricating compound is absolutely reliable for about forty minutes), thus effecting double economy of quality and quantity.

My lubricating compound can be used in the same way as an ordinary machine oil, but a slight loosening of the screw of the injector will facilitate in using the same ios advantageously in accordance with the Viscosity of the compound produced and the kind of engine to which it is applied.

Having;- thus fully described my inven- 5 tion, what I claim' as new and desire to secure by Letters Patent is:

A lubricating compound of the class described, consisting of fifty parts of a mineral oil, one hundred and fifty parts of Waiter forty parts of a soy bean albumen, tvvo parts 1 of phenolic preservatives, and four parts of sodium carbonate.

In testimony whereof I afiix my signature hereto.

nmsnoono KURATA. [11.8.] 

